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Staurolite

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NST715135

Staurolite

Description Tabs

Description
Locality: 
Finistère, Brittany, France
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 1.9 cm
Description

A twinned Staurolite from Finistère, France.

Mineral Data
What's on the rock

Staurolite

Formula: 
Fe2+2Al9O6(SiO4)4(O,OH)2
Strunz: 
9.AF.30
Crystal System: 
‎Monoclinic
Hardness: 
7.0 - 7.5
Colour: 
Brown
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